Molecular identification and functional characterization of rat MATE1 as an organic cation/H antiporter in the kidney
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منابع مشابه
Oppositely directed H+ gradient functions as a driving force of rat H+/organic cation antiporter MATE1.
Recently, we have isolated the rat (r) H(+)/organic cation antiporter multidrug and toxin extrusion 1 (MATE1) and reported its tissue distribution and transport characteristics. Functional characterization suggested that an oppositely directed H(+) gradient serves as a driving force for the transport of a prototypical organic cation, tetraethylammonium, by MATE1, but there is no direct evidence...
متن کاملMolecular identification and functional characterization of rat multidrug and toxin extrusion type transporter 1 as an organic cation/H+ antiporter in the kidney.
We have cloned and functionally characterized the rat ortholog of multidrug and toxin extrusion type transporter 1 (rMATE1). The mRNA of rMATE1 was strongly expressed in kidney and detectable in the various tissues such as brain, stomach, colon, lung, liver, spleen, skeletal muscle, and prostate. When stably expressed in HEK293 cells, rMATE1 could mediate the transport of tetraethylammonium (TE...
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Multidrug and toxin extrusion 1 (MATE1/SLC47A1) is important for excretion of organic cations in the kidney and liver, where it is located on the luminal side. Although its functional and regulatory characteristics have been clarified, its pharmacokinetic roles in vivo have yet to be elucidated. In the present study, to clarify the relevance of MATE1 in vivo, targeted disruption of the murine M...
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Renal elimination of a number of cationic compounds is thought to be mediated by the organic cation transporter 2 (OCT2, SLC22A2), a drug uptake transporter expressed at the basolateral domain of renal tubular cells. Recently, the key efflux transporter for the secretion organic cations was identified as an electroneutral H(+)/organic cation exchanger termed the multidrug and toxin extrusion (M...
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Dopamine is a cationic natriuretic catecholamine synthesized in proximal tubular cells (PTCs) of the kidney before secretion into the lumen, a key site of its action. However, the molecular mechanisms underlying dopamine secretion into the lumen remain unclear. Multidrug and toxin extrusion (MATE) is a H⁺/organic cation antiporter that is highly expressed in the brush border membrane of PTCs an...
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